/Engine/Source/Runtime/Engine/Classes/Materials/Material.h
Returns anyUMaterialExpressionFunctionOutputexpressions
void GetAllFunctionOutputExpressions ( [TArray](API\Runtime\Core\Containers\TArray)< class [UMaterialExpressionFunctionOutput](API\Runtime\Engine\Materials\UMaterialExpressionFunctionOutpu-) * > & OutFunctionOutputs ) const